async function loadData() {
  try {
    // const response = await fetch('displays/OPCUA/产品标识.json');
    const response = await fetch('displays/OPCUA/智能仪表.json');
    // const response = await fetch('displays/OPCUA/设备监控.json');
    // const response = await fetch('displays/电力/大厦.json');
    if (!response.ok) {
        throw new Error('Network response was not ok');
    }
    const data = await response.json();
    window.datamodel_config = data; 
    window.init(); 
  } catch (error) {
      console.error('Error loading JSON:', error);
  }
}
loadData();
